Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9736576 | Energy conversion apparatus and speaker structure | Tsutomu Kawase | 2017-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9736576 | Energy conversion apparatus and speaker structure | Tsutomu Kawase | 2017-08-15 |